Wrench.



01w; ROSE.

WRENCH.

APPLICATION FILED DEC. 29, 1910.

Patented May 16, 1911.

INVENTOR CHARLES W. ROSE, OF NEW CASTLE, PENNSYLVANIA.-

WRENCH.

Specification of Letters Patent.

Patented May 16, 1911.

Application filed December 29, 1910. Serial Ito. 599,829.

To all whom it may concern:

Be it known that I, CHARLES W. Rosn, a citizen of the United States ofAmerica, residing at New Castle, in the county of Lawrence and State ofPennsylvania, have invented certain new and. useful Improvements inTrenches, of which the following is a specification, reference being hadtherein to the accompanying drawing.

This invention relates to wrenches, and the objects of my invention areto provide a wrench with novel means in a manner as will be hereinafterset forth whereby the movable jaw thereof can be quickly adjusted, andto provide a wrench that can be advantageously used by mechanists andother artisans for rotating nuts and bodies having flat surfaces orfacets.

Other objects of the invention are to obviate the necessity of using ascrew in connection with a wrench for adjusting "the movable jawthereof, and to provide a wrench that can be easily and quicklymanipulated with one hand.

I attain the above objects by a mechanical construction that will behereinafter specifically described and then claimed, and reference willnow be had to the. drawing, wherein Figure 1 is a side elevation of thewrench, Fig. 2 is a similar view of a portion of the wrench showing themovable jaw in section,

Fig. 3 is a perspective view of a portion of the wrench, and Fig. 4 is aperspective view of a portion of the adjustable jaw of-the wrench.

A wrench in accordance with this invention comprises a shank 1rectangular in cross section and having the lower end thereof enlargedto provide an integral handle 2, the handle being approximately half thelength of the shank 1. The upper end of the shank 1 is provided with anintegral jaw 3 having a gripping surface 4 and the front side of theshank is provided with transverse'teeth 5. The shank 1 is provided witha longitudinal slot 6, said slot extending from a point in proximity tothe jaw 3 to a point intermediate the jaw 3 and the upper end of thehandle 2.

Slidably mounted upon the shank 1 is an adjustable jaw 7 having agripping surface 8 adapted to cooperate with the gripping surface 4 ofthe jaw 3 in engaging oppositely disposed facets of a nut. The jaw 7 iscut away, as at 9 and the lower end thereof provided with a tooth 10adapted to engage the teeth 5 of the shank 1'. The jaw 7 has the upperand lower ends thereof providedv withsets of straps 11 and 12, saidstraps being arranged in parallelism and the straps provided withopenings 13, 14 and 15, the openings 13 and 15 being formed in the upperset of straps and the openings 14 in the lower set of straps. In theopenings 13 are mounted transverse rivets or pins 16 employed forholding a filler block 17 between the ends of the straps 11. In theopenings 14 are mounted rivets or pins 18 employed for holding the upperend of a handle 19 between the ends of the straps 12, said handle havingthumb-pieces 20. In the openings 15 is mounted a transverse pin or rivet21, and this rivet extends through the slot 6 of the shank 1. Interposedbetween the rear side of the shank 1 and the handle 19 is a flat spring22 having the lower end thereof engaging the shank and the upper endfixed to the handle 19 by a rivet or pin 23.

The filler block 17 and the handle 19 are disposed at an anglerelatively to the shank 1 whereby, the lower end of the handle 19 can bepressed toward the shank to shift the lower end of the jaw and removethe tooth 10 out of engagement with the teeth 5, thereby permitting ofthe adjustable jaw being shifted upon the shank 1. The movement of thejaw is limited by the rivet 21 within the slot 6, this rivet preventingthe jaw from becoming accidentally disengaged, also serving functionallyas a pivot point when the jaw is tilted. The tension of the spring 22 issufficient to normally retain the tooth 10 in engagement with the teeth5 of the shank 1, but it is obvious that when leverage is brought tobear upon the wrench to rotate a nut that the greater the effort themore pronounced the gripping of the tooth 10 with the teeth 5 of theshank 1. What I claim is A wrench comprising a shank having one endthereof enlarged to provide a handle, a jaw'fixed to the-opposite end ofsaid shank, said shank having a relatively long longitudinal slot andfurther provided with teeth atthe front edge thereof, an adjustable jawslidably mounted upon said shank and having the inner side thereof atits inner end beveled to provide a tooth adapted to engage 'the teeth ofthe shank for arresting the movement of said adjustable jaw in onedirection, an outer set of straps projecting from the outer end of saidjaw and beyond said shank, an inner set of straps projecting from theinner end of said jaw and beyond said shank, a filler block fixedlysecured between the outer set of straps and opposing the rear edge ofthe shank, a handle having one end extending between and secured to theinner set of straps and opposing the rear edge of the shank, said handleprojecting inwardly from the inner set of straps and having its otherend provided With a thumb piece, a spring interposed between 1 set ofstraps and extending through the slot of the shank. V

In testnnony whereof I afliX my signature in the presence of twoWitnesses.

CHAR-LES V. ROSE.

, Vitnesses CLAIR M. Rose, GEORGE F. KELso.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

